Product Description DM™ 112 Plus SpeakerBass/mid-range, Sound Reinforcement /Musical instrument Reproduction Size: 12 Inch Impedance: 4 Ohms Power capacity: 900 W Peak 450 W Program 225 W Continuous Sensitivity: 92 dB / 1 W 1 m Usable freq. range: 45 Hz ~ 5 kHz Voice coil diameter: 2” / 50.8 mm Net weight: 6.10 lbs. / 2.77 kg Znom (ohms) 4 Revc (ohms) 3.30 Sd (Square Meters) 0.0522 BL (T/M) 9.53 Fo (Hz) 44.7 Vas (liters) 109 Cms (uM/N) 206 Mms (gm) 62.8 Qms 11.51 Qes 0.69 Qts 0.660 Mmd 48.1 Xmax (mm) 6.2 Le (mH) 0.35 SPL (1W 1m) 92 No (%) 0.98 Weight Unpacked: 4.63lbs (2.1kg) Weight Packed: 6.83lbs (3.1kg) Height Packed: 6.89" (17.5cm) Width Packed: 14.17" (36cm) Depth Packed: 14.76"(37.49cm)